Ventilated range



Feb. 19, 1952 B. A. GILLETTE vVENTILATED RANGE Filed July 19, 1947 Patented Feb. 19, 1952 UNITED STAT ES PAT ENT OFFICE VENTILATEDRANGE.

iienjamin A. Gillettavilla Park, 111.", assignor to Cribben and Sexton" Company, Chicago; 111;', a* corporation of'Illinois Application-,JnlyglQg 1947-, Serial No. 762',034;-

SClaims. 1

This invention relates to aventilated'range. The invention is particularly useful inconnectionwith a vfuel-burning range, suchasa gas range, etc., and also in connection `with `ranges employing eiectric and other heating elements..

In present day cooking appliances, utilizing gasliquid orsolid fuels, electric heating elements, etc., the exhaust products of lwater vapor, food vapors, and odors, ,productsl of fuel combustion, etc., are discharged directly into the kitchen. Sometimes special structures are set up for drawing orf vapors, air, and fumesfrom the room', but such structures are4 expensiveand the excessive dilution of the withdrawn material with air is undesired.v In ordinary practice, the gases, vapors, and odors released fromthe cook.- ingappiiance contributeto condensation on window surfaces, walls, and furniture, grease deposition requiring' excessiver cleaning and decorating, and the pollution of atmosphere in the entire house by food odors. Even when means for withdrawing vapors, etc.- are located close to the range. the withdrawnvapors have an opportunity to cool and condense, and further there .is extensive dilutionr of the withdrawn vapors by air.

An object of the present invention istoprovide means whereby vapors, fumes and combustion products, etc. 'may be. rapidly exhausted from a range, while at the same time preventing 'the condensation of the vapors prior tosuch removal. Yet, another object is to provide means for removingvaporsand the like from an oven or-other compartment in which a, burner is located. or cooking carried onwhile supplyingv to such'withdrawn medium, air drawn from other sources and for diluting the same. A further object is to provide a range provided with means for introducing secondary relief air into a withdrawal passage for balancing pressure and for diluting vapor-laden air from the oven in combination with suction means and with means for withdrawing air from the room at a point above the range. Other specific objects and advantages will appear as the specification proceeds.

The invention is illustrated, in a single embodiment, by the accompanying drawing, in which- Figure l is a broken perspective View, showing a range and Ventilating equipment associated therewith and embodying my invention; Fig. 2, a front View in elevation, the floor being shown in section; and Fig. 3, a broken vertical sectional View.

in the illustration given, III designates a floor.

which is provided y with an opening II; The opening.II extends .through the iioor at a point between thewalls I2 and I3-.of theroom. Below thefloor Iii.l is ablower. I4 .connected'to a discharge pipe I5leading to a point, preferably, outside of the building. Connected to theA intake of the-blower H1A is ,an inlet pipe I6, which extends upwardly through opening II` and is connected tothe tapering bottom walls of 'an ex'- haustor collectingboxIT. The box I1 extends upwardlyand is provided with van air-inlet grill wat its top. Below the grillIB, a conduit I9 extendsthrough wal1.l2 andfconnects' the col-1 lecting. box I'I with a space at'the rear of the range 20.

The range2ll .may be of anysuitable type or construction. In the illustration given, the range isprovided with aburnerfequipped top2I 'and with `an. upwardly extended back-splasher 22, provided with inlet ports 23.l To the rear of the ports Y 23,v is. an rexhaust chamberY 24 communicating With the conduitIIi.'`

The-range ZILis .provided with an inner casing forming. anoven compartment 25,be1oW which is` showna burner 26. In the usual gas range, the burner 2S is ylocatedin the top of the broiler compartment and products. of. combustion pass upwardlyand through perforationsin the oven walls so asto-.be .retained by theoven. In the illustration l`given,..the.oven 2E', is provided with anf-.outletpassage 2l, and the` passage` 21 communicateswith the flue box 28. The .upper end ofthe-flue -,box28 terminates adjacent .the inlet openings 23.`

Operation In the operation of the structure, the blower I4 is set into operation when the range is to be used or ventilated, and a current of air is drawn through pipe I6 and the collecting box I1. Products of combustion, vapors, etc. from the oven 25 are drawn upwardly through the flue box 28 into the zone of reduced pressure at 24. Here, secondary air for relief is drawn through the apertures 23 and the blended air passes through conduit I9 into collecting box I'I. At the same time, vapors and products of combustion arising from the burners on the range top 2l are drawn inwardly through the apertures 23 and through the grill I8. Thus, a balanced or standardized pressure is obtained, which removes the vapors, etc. from the oven 25 and brings in air from above the range to standardize or balance the pressure and to remove the vapors without permitting their condensation. Since the box I'I has tapered lower walls leading to a narrow pipe IG, the velocity of the vapor-laden air is increased and discharged effectively through the discharge pipe l5. By introducing secondary air adjacent the outlet from the due box 28, I am able to obtain a nice balance in the withdrawn air, while maintaining a desired low pressure within the ilue box 28.

The back-splasher 22 is provided with an outlet opening 3D in the top portion thereof, which provides a primary relier opening for the flow of the oven-hue products when the blower is not in operation. It will be understood that the outlet opening 39 may be of any desired shape.

The apparatus is simple, compact, and is highly effective in the removal of fumes, vapors, products of combustion, etc. arising from the entire range.

While in the foregoing specification, I have set forth a single range structure in considerable detail for the purpose of illustrating one embodiment or' the invention, it will be understood that the details of the structure may be varied widely by those skilled in the art without departing from the spirit of my invention.

l'. claim:

1. A range and blower structure, comprising a range having a burner-equipped top and a holA low back-splasher extending thereabove, an oven within said range having a port at the rear end thereof, a Iflue box adjacent the rear of said range extending from a point within said backsplasher to a point below said oven port, said ue box having an open lower end and an open top end and communicating with said port at a point between said ends, said back-splasher having inlet port means in the front wall thereof above the upper end of said flue box, a collector box providing a substantially closed chamber behind said bacl-splasher and said iiue box and extending above said back-splasher, said collector box having intake means in the front wall thereof above said back-splasher of considerably7 larger capacity than said back-splasher inlet means and a port communicating with the top portion of said back-splasher, and a suction exhaust means communicating with the bottom of said collector box chamber, whereby said exhaust means can induce a high velocity iiow of relatively cool air through said collector box white maintaining a balanced suction within said backsplasher to produce a low velocity flow of relatively warm air from said burner-equipped top and from said oven into said collector box chamber.

2. In combination, a range resting upon the floor of a room and having its rear portion abutting a wall of the room, said range having a burner-equipped top and an oven within said range having a port at the rear end thereof, a hollow back-splasher extending above said burner-equipped top and having inlet ports in the front wall thereof, a flue box between the rear of said range and said wall extending from a point within said back-splasher below said backsplasher ports to a point below said oven port, said ilue box having an open lower end and an open top end and communicating with said oven port at a point between said ends, a collecting box supported within said wall and having at its top an intake opening communicating with the room above said back-splasher inlet ports and a port below said intake opening communicating with said back-splasher in alignment with said back-splasher ports and above the open top end of said ue box, said collector box intake opening having a considerably greater capacity than said back-splasher inlet ports and a suction exhaust means communicating with the bottom of said collector box, whereby said exhaust means can induce a high velocity flow of air through said collector box while maintaining a balanced suction within said back-splasher to maintain a low velocity flow of air from said burner-equipped top and from said oven into said collector box.

3. The structure of claim 1 in which said backsplasher has an opening in the top thereof in alignment with the open top end of said flue box to provide a primary relief opening for the flow of the oven-llue products when the blower is not in operation.

BENJAMIN A. GIILETTE.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,802,617 Mullin Apr. 28, 1931 1,969,565 Klemme Aug. 7, 1934 V2,081,640 Petersen May 25, 1937 2,182,106 Ames Dec. 5, 1939 2,350,293 Stanchfield May 30, 1944 2,376,571 Brumbaugh May 22, 1945 2,482,952 Warren Sept. 27, 1949 FOREIGN PATENTS Number Country Date 537,140 Germany Oct. 15, 1931 

